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Archive for posts tagged "SystemTap"

In computing, SystemTap (stap) is a scripting language and tool for dynamically instrumenting running production Linux kernel-based operating systems. System administrators can use SystemTap to extract, filter and summarize data in order to enable diagnosis of complex performance or functional problems. Wikipedia

Scaling CloudFlare’s Massive WAF

CloudFlare wants to provide a WAF to a very large number of customers. To do so meant two things: being compatible with the existing mod_security WAF so that we could leverage existing rulesets and allow people familiar with mod_security (both CloudFlare people and customers) to write new rules. Read more